Explaining meme coins and why the joke-inspired cryptocurrencies often crash

In the up-and-down world of cryptocurrency, so-called meme coins are perhaps the most bewildering. The joke-inspired digital currency is all over the internet with new tokens popping up every day by the thousands. The value of some jumped thanks to viral trends or celebrity endorsements. But most never take off, crash or disappear. Economics correspondent Paul Solman reports. PBS News is supported by - https://www.pbs.org/newshour/about/funders